钱币参考书2本,分别《澳门钱钞纵横》及《收藏传奇-张南琛中国钱币收藏》,保存完好。 Miscellaneous Items, a pair of numismatic publications, Macau: Aspect Banknote, 2016, published by the Macau Numismatic Association, and A Legacy of Collection: The NC Collection of Chinese Coins, 2021, by Nelson Chang,well preserved (2)